This vintage photograph is terrific. We get a peek at the farm, the car and the family in Ohio. Looking at little Wava, b 1919, can help to date this. Maybe it was late 1920s or early 1930s. It looks casual, with Owen sitting on the car but the brothers are wearing ties. I guess it was a Sunday morning with them dressed for church.
Three sisters are not in the photograph: Isabel Esther Mark Nee m 1922, Vera Mark Ballard m 1933 and Ivy Mark Brown m 1927. Did one of those sisters take the photo?